Finding the Fourth Proportional to 75.88, 104.72 and 42.69

Step by Step Solution

1. Step 1: Write the proportion equation
   75.88 : 104.72 = 42.69 : x
2. Step 2: Convert to fraction form
   75.88/104.72 = 42.69/x
3. Step 3: Cross multiply
   75.88x = 104.72 × 42.69
4. Step 4: Simplify right side
   75.88x = 4,470.21
5. Step 5: Solve for x
   x = 4,470.21/75.88
6. Step 6: Final answer
   x = 58.91